B. Zorc
Institut za varilstvo
1000 Ljubljana, Ptujska 19
L. Kosec, FNT, Odsek za metalurgijo in materiale, Ljubljana
Kompozitne spajke izboljsajo mehanske lastnosti spajkanih spojev.
Nacin vstavljanja armature v spajkani spoj kovina-kovina omogoca
hitro izolacijo evtektika v spoju. Armatura se zaradi
mikrostrukturne spremembe evtektika v trdno raztopino mocneje
poveze z osnovnim materialom. Znacilen spajkani spoj z
vstavljanjem armature izgine. V clanku so opisani rezultati
raziskav spajkanja nerjavnih in nizkoogljicnih jekel ter bakra.
Kljucne besede: armirani spajkani spoj, izolacija evtektika,
sprememba evtektika v trdno raztopino, mikrostrukturno
homogenejsa povezava armature z osnovo
Composite brazing filler metals improve mechanical properties of
brazed joints. The manner of armour insertion into the
metal-to-metal brazed joint permits a quick isolation of eutectic
in the joint. The armour joints more strongly to the parent metal
due to the change of eutectic microstructure into a solid
solution. With the armor insertion, the characteristic brazed
joint disappears. The article describes results of studies on
brazing of stainless and low-carbon steels and of cooper.
Key words: armoured brazed joint, eutectic isolation, eutectic
change into solid solution, microstructurally more homogeneous
joining of the armor to the parent metal